If Typing replaces selection is selected on the Edit tab in the Options dialog box, this example collapses the selection before inserting "Hello." This technique prevents existing document text from being replaced.
If Options.ReplaceSelection = True Then
Selection.Collapse Direction:=wdCollapseStart
Selection.TypeText Text:="Hello"
End If
This example inserts "Title" followed by a new paragraph.
Options.ReplaceSelection = False
With Selection
.TypeText Text:="Title"
.TypeParagraph
End With